Embedded Computing
... • poor compiled code quality (% peak with compiled code) • high static code efficiency • high MIPS/$ and MIPS/W • usually assembly-coded in critical loops Worth one engineer year in code development to save $1 on system that will ship 1M units Assembly coding easier than ASIC chip design But, room f ...
... • poor compiled code quality (% peak with compiled code) • high static code efficiency • high MIPS/$ and MIPS/W • usually assembly-coded in critical loops Worth one engineer year in code development to save $1 on system that will ship 1M units Assembly coding easier than ASIC chip design But, room f ...
How do they work?
... Since the phenomenon of mutual induction relies on changing magnetic fields, and direct current (DC) can only produce steady magnetic fields, transformers simply will not work with direct current. Of course, direct current may be interrupted (pulsed) through the primary winding of a transformer to c ...
... Since the phenomenon of mutual induction relies on changing magnetic fields, and direct current (DC) can only produce steady magnetic fields, transformers simply will not work with direct current. Of course, direct current may be interrupted (pulsed) through the primary winding of a transformer to c ...
Desing of power sources, converters
... Power semiconductor converters • Equipment for changing quality of electrical energy (voltage, current, frequency, no. of phases, impedance, etc.) • Conversion of energy „nearly“ without power losses • The most often converters: – rectifiers (diodes, not controlled), – frequency converters (non-dir ...
... Power semiconductor converters • Equipment for changing quality of electrical energy (voltage, current, frequency, no. of phases, impedance, etc.) • Conversion of energy „nearly“ without power losses • The most often converters: – rectifiers (diodes, not controlled), – frequency converters (non-dir ...
Power Factor Improvement Experiment # 4 Power Factor
... The term cos θL in the above equation is called power factor (PF) of load. If the load PF is less than unity it may be either capacitive (i.e. leading) PF or inductive (i.e. lagging) PF. However, in practice almost all the loads are inductive with lagging PF. When the PF of a load is less than unity ...
... The term cos θL in the above equation is called power factor (PF) of load. If the load PF is less than unity it may be either capacitive (i.e. leading) PF or inductive (i.e. lagging) PF. However, in practice almost all the loads are inductive with lagging PF. When the PF of a load is less than unity ...
Total Solution for Energy Efficient Home Appliance Power
... Energy efficiency is crucial to both consumers and environment As much as half of the energy used in home goes to heating and cooling. So making smart decisions about heating, ventilating, and air conditioning system can have a big effect on utility bills. Saving energy at home also can help to prot ...
... Energy efficiency is crucial to both consumers and environment As much as half of the energy used in home goes to heating and cooling. So making smart decisions about heating, ventilating, and air conditioning system can have a big effect on utility bills. Saving energy at home also can help to prot ...
AN-5019 LVDS: Calculating Driver/Receiver Power AN- 5019
... Summary An advantage of LVDS is its low power at high data rates. With a current draw of 3.5 mA per output, an LVDS output at 3.3V dissipates about 11 mW, a constant with the frequency of operation. A method for calculating the total ...
... Summary An advantage of LVDS is its low power at high data rates. With a current draw of 3.5 mA per output, an LVDS output at 3.3V dissipates about 11 mW, a constant with the frequency of operation. A method for calculating the total ...
Face to Face Common Syllabus - Oklahoma State University
... Transformer kVA Rating, Current Flow, and Current Rating Review information covered during the semester and tour high voltage basic electrical lab for additional transformer basics. ...
... Transformer kVA Rating, Current Flow, and Current Rating Review information covered during the semester and tour high voltage basic electrical lab for additional transformer basics. ...
Implementation of Thyristor Switched Capacitors for Power Factor
... This paper provides Thyristor Switched Capacitor controlled by help of programmed microcontroller where it is depicted that the power factor can be improved to unity with light loading and can be maintained to around 0.98 with increase in system loading. This paper provides implementation done on 80 ...
... This paper provides Thyristor Switched Capacitor controlled by help of programmed microcontroller where it is depicted that the power factor can be improved to unity with light loading and can be maintained to around 0.98 with increase in system loading. This paper provides implementation done on 80 ...
changing magnetic field
... • If a transformer was used to step-up the voltage by a factor of 10 (to 80,000 V), calculate the new power loss in the distribution line. ↓ by 10 times … I= 10A If V ↑ by 10 times, I ______________________. ...
... • If a transformer was used to step-up the voltage by a factor of 10 (to 80,000 V), calculate the new power loss in the distribution line. ↓ by 10 times … I= 10A If V ↑ by 10 times, I ______________________. ...
Scheme of work for Year 7: Introduction
... and introduce the idea that a power station generator works on the same principle. Discuss the differences between the dynamo and the generator (bigger, cooling system, spinning electromagnet as the core, steady rate of spin) and make a table of these differences. Introduce the terms frequency and H ...
... and introduce the idea that a power station generator works on the same principle. Discuss the differences between the dynamo and the generator (bigger, cooling system, spinning electromagnet as the core, steady rate of spin) and make a table of these differences. Introduce the terms frequency and H ...
`The Atoms Family` (A Great Electrical Resource Site) `Just for Kids
... Electrical energy is the energy carried by charged particles. Voltage is a measure of how much electrical energy each charged particle carries. The higher the energy of each charged particle, the greater the potential energy. Also called 'potential difference', the energy delivered by a flow of char ...
... Electrical energy is the energy carried by charged particles. Voltage is a measure of how much electrical energy each charged particle carries. The higher the energy of each charged particle, the greater the potential energy. Also called 'potential difference', the energy delivered by a flow of char ...
R210-90-6
... ANSI Standard C57.12.90 does not endorse any fixed or standard percentage power factor level for transformers. When specifying transformers, absolute values for power factor should not be defined. ...
... ANSI Standard C57.12.90 does not endorse any fixed or standard percentage power factor level for transformers. When specifying transformers, absolute values for power factor should not be defined. ...
Magnetic Switch・Magnetic Contactor Manual DANGER CAUTION
... Confirm that setting current is in accordance with rated current of the motor. ２）When the thermal overload relay operates, push the button after taking off the causes of overload. ...
... Confirm that setting current is in accordance with rated current of the motor. ２）When the thermal overload relay operates, push the button after taking off the causes of overload. ...
Power quality
... are coming to the forefront for utilities as well as for industry. The cause of the problems and the optimum solutions vary substantially from case to case. Siemens Power Technologies International (Siemens PTI) can consult on all aspects regarding power quality to determine the best possible soluti ...
... are coming to the forefront for utilities as well as for industry. The cause of the problems and the optimum solutions vary substantially from case to case. Siemens Power Technologies International (Siemens PTI) can consult on all aspects regarding power quality to determine the best possible soluti ...
S13 Review (s14review13)
... Initial the machine is under-excited, so armature reaction is helping to support the flux linkages in the stator winding. With no real power, all the flux is in the q-axis (and the induced voltage leads by 90º – Kundar notation). Most of the flux in the “stator” field is links the rotor field. The s ...
... Initial the machine is under-excited, so armature reaction is helping to support the flux linkages in the stator winding. With no real power, all the flux is in the q-axis (and the induced voltage leads by 90º – Kundar notation). Most of the flux in the “stator” field is links the rotor field. The s ...
Electrification
Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.